Question

1. Which of the following numbers are perfect cubes?
a. 243 b.8000 c.9261
2. Find the volume of a cube whose edge measures 5.3 cm.
3. Find the side of the cube whose volume is 820.584 cubic metres.
4. Find the smallest number by which 2560 be multiplied so that the product becomes a perfect cube

Answer 1

Step-by-step explanation:

(1) b

(2) 5.3³ = 148.777cm³

(3) a cube whose volume is 830.584cm³ having a side of 9.4cm

(4) factors of 2560 = (2×2×2)×(2×2×2)×(2×2×2)×(5)

so we need to multiple 2560 by (5×5) 25 to make to perfect cube

Therefore smallest number is 25

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